Dump car door mechanism



Sept. 28, 1954 IG. B. DOREY 2,690,140

DUMP CAR DooR MECHANISM Filed Dec. 8, 195o 5 sheets-sheet 1 G 5.51 BYOfge O@ Sept.v 28, 1954 G. B. DoREY DUMP CAR DooR MECHANISM 5 Sheets-Sheet 2 -Filed Dec. s, 195o i I INVENTOR.

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DUMP CAR DOOR MECI-IANISMl Filed Dec. 8, 1950 5 Sheets-Sheet 3 IN V EN TOR.

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DUMP CAR DooR MECHANISM Filed Dec. 8, 1950 5 Sheets-Sheet 4 IN V EN TOR.

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Sept. 28, 1954 G. B. DOREY 2,690,140

DUMP CAR DOORMECHANISM Filed Dec. 8, 1950 5 Shi-:ets-SheefI 5 INVEN TOR. f

Patented Sept. 2.8, QS

UNITED STATES PAT oei-Fica DUMP CAR; Doon MEGHANISM'.

George B;'Dorey, Montreal, Quebec, Canada, assignorto Enterprise Railway1 Equipment Oompany", Chieago, Ill.,'a corporation otj Illinois Application December 8, 19.50Seria1No. 199,142

4-Glaims. 1

My'invention relates tov an. improved'. dumpjcafr door operating mechanism.y employed for raising and lowering the discharge .door of a railway dump car, and is especially adaptedto meet. spe.-` cial conditions which arise in connection. with a type of car used for. depositing ballast at' the sides of the rails and involving a door which when in closed position extends upwardly at an incline and swings downwardly to an inclined opened position.

The objects of the invention among others are the provision of a winding sheave for a. flexible connectionv extending between said sheave and door wherein the sheave is maintained in axial alignment on a shaft by means of guiding walls extraneous to the sheavev and together provide for: guiding a exible connection to maintain a straight line path by guiding meansl disposed independently off the sheave.

My invention further resides in thev construction involved inthe structural relation between a winding sheaveand the lower reinforcing beam. of the hopper whereby a exible, connection extends through the lower flange of said. beam and inthe cooperation between the hopper structure. and mechanism parts such as will be pointed out;

For further comprehension. of my invention reference may be had to the accompanying drawings shoWing my improvements. embodied in connection with the. door of a side discharging bal last car.

In said drawings Figure. 1 is an endy elevation view of vthe outer end of a hopper showing my improvements applied thereto.V

Figure 2 is a longitudinal' side elevational. View., of. a portion ofthe side of a car showing in side elevation the structure shown in Figurev l and illustrating one door in relation to the. car structure having my invention'applied thereto.

Figure 3 is a plan View of the. structure. illuS- trated in Figures 1 and 2 with portionsv thereof broken away to better illustrate my improved sheave structure and guiding walls.

Figure 4 is ay vertical transverse sectional View on an. enlarged scale taken through the door and, related car structure as viewed on aline 4-.-i4. of Figure 2 With'the door in. closed position.` Figure 5 is ay view similar to Figure 4. except, that the door is shown in open position.

Figure 6 is a fractional sectional View on an enlargedscale taken on a. line 6-6 of Figurefl.

Figure '7 is a. detail frontal elevational View of one of the Winding sheavesjshowing the same in detached relation.

Figure 9` is jan endel'evationalfview of a beam showing a modified formjof structure. for the lower ange. of the beam.'

Figure I0' is a'vertical side elevationall viewv of thev hopper reinforcing beam shownV in Figure, 9;

Figure ll is a sectional' plan View of' the structure shownin Figure l'O'as seen on aline II-I I; of said'Figure 9.

Figure 12 is a vertical sectional View on an. en'- larged'-scal`e takenv through the beam` on a line I2-I2`of'Figure 1,'0.

Figure 1.31 is still.'v another'modifloat.iony of the door beam, said ligure showing an. endj' view of the 'bf-:anny

Figure I4y is a vertical sideelevati'onal'viewv of the beam shown 'infFigure 13j as viewed from left to right.

In' Said' drawings. the oar structureas. distin-y eushed'from the dump door. is: Shown. as including. a oar Side Wallin the formi. ot a side platev I0 having. a. lower 'reiniorcipg angle member Il. Slopngdownwardly to.. a 'lower hopper structure l2` is av sloping 1100.1 plate i3 which'is reinforced by a substantially'channelj shaped.; beam member. I4 havingfaxvertically disposedi'web; l5, an.L upper flange I6; 'underlying theI noorplate I3. and an outwardly' directedlower' marginal. flange ll which extends beneath. the sloping. door plate I3.. The hopper extendslengthwise off the oar for an; appreciable distance andateacnendi tnereis provided a transversely extending wall structure.- in.- dicated generally at. VIll which` constitutel baiile plates for confining the. How of the ladine as it flows from the door opening: A. hinge rod 1.9, which soarried by said'end wall structures.. ex.- tendsv .lengthwise of said hopper l2 for thefentire.

length thereof and" pivotally mountedjon said rod is a dumping. door. 2.0. The door 2,0, is. provideclwith` a hinge loopl structure 2l; which. encirecles the. hinge. rodA .lll and in. combination. with a facing' door 21 forms. a continuons hinge and. the door .20. is, extended tpwards. the. beam member I4 to abut the sameV when'the. door is in closed position.

The Ydoor 2115 adjacent its,l hinge and swinging; edges is reinforced 'by longitudinally extendm beam members 23 which are preferably of, Z shapedv construction with one, iiange 24 underly. ing .thev plate 'ofthe .door Z0' and riveted or mailer4 wise secured thereto.

The door. arranged to, extend upwardly from its hinge.- axis. to. lie in. closed position ata slope. corresponding substantially to the slope of the. upper floorplate, |.3l movable downwardly Figure 8 isa side elevational' view ofthe sheave 55 to anbpen position to a slope. lying-atv a. load shown in Figure 7 as viewed from right to left.

shedding angle.

The door is arranged to be raised and lowered by means of winding mechanism which includes a shaft 25 rotatably mounted in bearings 26 at each end of the hopper there being provided on the shafts thimbles 26a to form circular bearings. Non-rotatably mounted on the shaft 25 are winding sheaves 21 and connecting each said sheave and the door 20 is a flexible connection 28 preferably in the form of a coil chain. Each sheave is provided with a pair of lugs 29--29 between which the end link 3U of the chain is received and a rivet 3| extends through said jaws and link.

The opposite end of the connection 28 is connected to the door 20 by means of a threaded eyebolt 32 which extends through the front beam member 23 and an adjacent bracket 33, the latter being secured to the door 20 and welded to the member 23 at 34. The connection 28 extends around the front edge of the door 20 which is notched at 35 and at each side of the notched section the edge of the door is reinforced by gusset plates 36 which are welded to the door plate and front door beam.

Each sheave 21 includes a flat peripheral face 31 extending on a given diameter for its entire width and the edge portions 38 constitute guiding walls with which the vertical walls 39-39 of angle shape members 4I] engage to maintain the sheaves 21 in xed axial relation to the shaft 25. Said angle shaped members 40 are riveted or otherwise secured to the underside of the sloping floor plate I3 and extended to underlie the side wall reinforcing member I I and the upper flange I6 of the beam member I4. The angle members 40 being disposed at each side of the sheaves 21 form strong reinforcing members for the floor I3 and maintain the latter against buckling due to the impact of dropped lading.

Each connection 28 in its passage from the sheave to the door extends through an aperture 4I formed in the lower flange I1 of the beam I4 and in alignment with the sheave 21, the said flange I1 is ilared downwardly as indicated at 42. The extent of flange I1 included in flare 42 includes a portion of the aperture 4I and the edge portion 43 of said aperture lies immediately adjacent the peripheral surface 31 of the sheave 21 and operates to maintain said surface free of clay and mud as may be gathered by the connection and deposited on the face of the sheave 21 during the door raising operation.

In order to seal the openings formed by the notches 35 in the door plate 20 there is secured to the outer face of the beam `I4 a sealing plate 44 which includes a lip 45 extending to overlie the notch 35.

The employment of my improved mechanism permits the location of the beam member I4 in close proximity to the sheaves 21 resulting in a wide load containing space between the beam members on the respective sides of the car and making for large load carrying capacity, and most importantly allows the use of a supporting beam of great strength both vertically and laterally.

'Ihe rotation of the shaft 25 may be effected by any suitable rotating means (not shown). In the course of the swinging movement of the door from closed to opened positions or vice versa the sheaves 21, as will be observed by reference to Fig-- ures 4 and 5, rotate an angular distance less than a complete revolution and the lugs 29 move from a position at the side of the marginal flange I1 to a position above the same and during such 4 movement each flexible connection 28 is mairitained in place over the face 31 of the associated sheave by reason of extending between the guiding walls 33-39 and through the aperture 4I.

In the modification shown in Figures 9, 10, 11 and 12 there is shown a structure wherein the sloping floor reinforcing beam I I is formed with a comparatively narrow reinforcing flange III and at each connection the said flange is formed with an open notch II2, and across the interrupted flange there is disposed a reinforcing plate II3. The said plate II3 is apertured at IIll for the accommodation of a flexible connection therethrough and the said apertured section is flared downwardly as indicated at IIS to clear the sheave 21 as heretofore described.

In the construction shown in Figures 13 and 14 this beam is shown as including a vertical web 2 I0, an upper flange 2 I I and a lower flange structure including a substantially horizontally extending wall 2I3 having its outer margin 2I4 flanged downwardly for its entire length. Apertures 2I5 are formed in the depending flange 2 I4 and horizontal wall 2 I3 for the accommodation of the flexible connections therethrough.

What is claimed as new is:

l. In a load discharging car having a hopper including a stationary upper sloping floor and a beam extending lengthwise beneath the marginal edge of the floor, said beam having an upstanding web and a lower marginal flange extending inwardly beneath the sloping floor; a discharge door pivotally mounted on an axis spaced from the reinforcing beam, said door being swingable to closed position to meet with the beam; a winding shaft rotatably mounted outwardly of the beam; a sheave non-rotatably mounted on said shaft and axially movable thereon; a pair of spaced walls carried by said sloping iloor on the underside thereof straddling the sheave to prevent lengthwise movement thereof;

'said beam having an aperture in its lower flange,

said aperture being disposed in alignment with the sheave; those portions of the flange on opposite sides of said sheave being flared downwardly and interconnected by a portion of said flange in close proximity to the surface of said .sheave whereby said portion acts as a scraper to keep said surface clean; and a exible connection between the sheave and door extending through the aperture of the door beam and guided on the sheave by the spaced walls.

2. In a load discharging car having a hopper including a fixed floor structure and a discharge door pivotally mounted on the car structure and swingable to closed position with its swinging edge meeting with the fixed floor structure; a winding shaft rotatably mounted on the car structure beyond the swinging edge of the door; a sheave non-rotatably and axially slidably mounted on the shaft; a flexible connection connected to the sheave and door for raising and lowering the door by rotation of the shaft; and guiding walls on each side of the sheave carried by the car structure and forming a channel within which the flexible connection extends and is maintained in a straight line path over the periphery of the sheave, said walls also preventing axial movement of said sheave along said shaft.

3. In a load discharging car having a hopper including a stationary upper sloping floor and a reinforcing beam extending lengthwise beneath the marginal edge of the floor, said beam having an upstanding web and a lower marginal flange extending outwardly beneath the sloping floor; a discharge door pivotally mounted on an axis spaced from said beam, said door being swingable to closed position to meet with said beam; a winding shaft rotatably mounted outwardly of said beam; a sheave non-rotatably and axially slidably mounted on said shaft; means cooperating with said sheave to prevent axial movement thereof along said shaft; said beam having an aperture in its lower flange in alignment with said sheave; and a connection betwieen said sheave and door extending through said aperture in said lower ange and guided by the walls thereof to wind on said sheave.

4. In a load discharging car having a hopper including a stationary upper sloping floor for directing lading to a discharge opening, said floor having a floor beam extending lengthwise beneath the marginal edge of said floor, said beam being of substantially channel shape with a vertical web dening a wall section of the hopper and a lower iange extending beneath the sloping iioor; a discharge door pivotally mounted on an axis spaced from said beam, said door being swingable to closed position to meet with said lower flange of said beam; a winding shaft rotatably mounted outwardly of said beam and above its lower flange, a sheave non-rotatably vand axially slidably mounted on said shaft, means cooperating with said sheave to prevent axial movement thereof along said shaft, a connection from said sheave to said door, said connection extending through said lower flange of said beam, said flange being apertured in alignment with said sheave for the accommodation of the connection therethrough and guiding the same to wind on said sheave and said flange being flared downwardly at each side of said sheave so that the plane of said ange extends through said sheave.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 613,956 Anderson Nov. 8, 1898 964,749 Campbell July 19, 1910 1,027,197 Goodwin May 21, 1912 1,768,728 Zimmer July 1, 1930 2,150,418 Campbell Mar. 14, 1939 2,329,159 Gwaltney et al Sept. 7, 1943 2,373,538 Campbell Apr. 10, 1945 

